The electromagnet generates a magnetic field, the voice coil is energised with electric current which causes the generation of an electromotive force which moves the voice coil. The voice coil is attached to the speaker cone, which vibrates in accordance with the amplitude and direction of the current in the voice coil, thereby generating compression/rarefaction … Read more
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A microphone converts the sound energy into electrical energy. An electromagnet is employed in a microphone to induce an electrical current. One such example is a dynamic microphone that creates a current. They work on the principle of electromagnetic induct ion. There is a small induction coil in the microphone that is placed in the … Read more